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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Draws an elliptical arc</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagickdraw-pathcurvetosmoothrelative.html">ImagickDraw::pathCurveToSmoothRelative</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagickdraw-pathellipticarcrelative.html">ImagickDraw::pathEllipticArcRelative</a></div> <div class="up"><a href="class.imagickdraw.html">The ImagickDraw class</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.imagickdraw-pathellipticarcabsolute" class="refentry"> <div class="refnamediv"> <h1 class="refname">ImagickDraw::pathEllipticArcAbsolute</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">ImagickDraw::pathEllipticArcAbsolute</span> — <span class="dc-title">Draws an elliptical arc</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>ImagickDraw::pathEllipticArcAbsolute</b></b></span> ( <span class="methodparam"><span class="type">float</span> <tt class="parameter">$rx</tt></span> , <span class="methodparam"><span class="type">float</span> <tt class="parameter">$ry</tt></span> , <span class="methodparam"><span class="type">float</span> <tt class="parameter">$x_axis_rotation</tt></span> , <span class="methodparam"><span class="type">bool</span> <tt class="parameter">$large_arc_flag</tt></span> , <span class="methodparam"><span class="type">bool</span> <tt class="parameter">$sweep_flag</tt></span> , <span class="methodparam"><span class="type">float</span> <tt class="parameter">$x</tt></span> , <span class="methodparam"><span class="type">float</span> <tt class="parameter">$y</tt></span> )</div> <div class="warning"><b class="warning">Warning</b><p class="simpara">This function iscurrently not documented; only its argument list is available.</p></div> <p class="para"> Draws an elliptical arc from the current point to (x, y) using absolute coordinates. The size and orientation of the ellipse are defined by two radii (rx, ry) and an xAxisRotation, which indicates how the ellipse as a whole is rotated relative to the current coordinate system. The center (cx, cy) of the ellipse is calculated automatically to satisfy the constraints imposed by the other parameters. largeArcFlag and sweepFlag contribute to the automatic calculations and help determine how the arc is drawn. If largeArcFlag is <b><tt>TRUE</tt></b> then draw the larger of the available arcs. If sweepFlag is true, then draw the arc matching a clock-wise rotation. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">rx</tt></i></span> <dd> <p class="para"> x radius </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">ry</tt></i></span> <dd> <p class="para"> y radius </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">x_axis_rotation</tt></i></span> <dd> <p class="para"> x axis rotation </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">large_arc_flag</tt></i></span> <dd> <p class="para"> large arc flag </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">sweep_flag</tt></i></span> <dd> <p class="para"> sweep flag </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">x</tt></i></span> <dd> <p class="para"> x coordinate </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">y</tt></i></span> <dd> <p class="para"> y coordinate </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> No value is returned. </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagickdraw-pathcurvetosmoothrelative.html">ImagickDraw::pathCurveToSmoothRelative</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagickdraw-pathellipticarcrelative.html">ImagickDraw::pathEllipticArcRelative</a></div> <div class="up"><a href="class.imagickdraw.html">The ImagickDraw class</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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